在我们做搜索的时候经常要用到模糊查询
(注:其中name1,name2,name3,name4为数据库字段)
1.方法
sql="select * from table where "
if name<>"" then
sql=sql & "name1='"&变量&"'"
end if
if belong1<>"" then
sql=sql & "name2='"&变量&"'"
end if
if belong2<>"" then
sql=sql & "name3='"&变量&"'"
end if
if belong3<>"" then
sql=sql & "name4='"&变量&"'"
end if
2.方法(存储过程)
create proc spyourname
(
@name1 varchar(20),
@name2 varchar(20),
@name3 varchar(20),
@name4 varchar(20),
@name5 varchar(20)
)
WITH ENCRYPTION
as
set nocount on
declare @SQL varchar(5000)
set @SQL='select name1,name2,name3,name4,name5 from yourtable where 1=1 '
if @name<>''
set @SQL=@SQL+ ' and name1 like ''%'+@name+'%'''
if @belong1<>''
set @SQL=@SQL+ ' and name2 like ''%'+@belong1+'%'''
if @belong2<>''
set @SQL=@SQL+ ' and name3 like ''%'+@belong2+'%'''
if @belong3<>''
set @SQL=@SQL+ ' and name4 like ''%'+@belong3+'%'''
exec(@SQL)